Table 1.

Detected vs not detected results on the cobas SARS‐COV‐2 test and LDT

	Cobas SARS‐CoV‐2 test
LDT		Detected	Not detected	Total
	Detected	639	1	640
	Not detected	39	284	323
	Total	678	285	963
	Overall percent agreement = 95.8% Positive percent agreement = 94.2% Cohen's κ coefficient: 0.904 (95% CI, 0.875‐0.933)

Notes: Detected on cobas SARS‐COV‐2 test = targets 1 and 2 detected or target 1 not detected and target 2 detected.

Not detected on cobas SARS‐COV‐2 test = targets 1 and 2 not detected.

Detected on LDT = N1 _Ct < 38 and N2 _Ct < 38 and RP _Ct < 35.

Not detected = N1 _Ct ≥ 38, N2 _Ct ≥ 38 and RP _Ct < 35.

Abbreviations: CI, confidance interval; C _t, cycle threshold; LDT, laboratory‐developed test real‐time RT‐PCR; RP, RNase P; SARS‐COV‐2; severe acute respiratory syndrome coronavirus‐2.